Three Kingdoms

Fei Qian closed his eyes and recalled the devices of later generations. What could be both stable and change frequency?

Bearings? Not...a belt? Probably not...

By the way, it’s the gear!

A simple large and small gear set can amplify or reduce the rotation speed, and the traction force is consistent during the rotation of the gear. But what should the gear be called in the Han Dynasty?

Fei Qian didn't know how to explain it clearly, so he simply drew a schematic diagram on the ground and said to Huang Chengyan: "Master Yuezhang, please see, if this water cone can be modified, replace all the wooden poles and stone cones. into iron, and then add this to change the speed of the blow..."

Fei Qian drew a figure of a large gear and a small gear meshing with each other...

"Yes! You can add a ratchet!" Huang Chengyan clapped his hands and said.

It turns out that water cones are used to remove the husks of crops by using a lever and slowly hitting them with stone cones. Now we use large and small gears to change the speed, and then use iron rods and hammers to replace the easily damaged wooden poles. It is used for craftsmen's requirements for hitting iron blocks at high speed.

Ratchets, also known as gears, existed during the Warring States Period, but until the Han Dynasty, most people didn't know how to use them specifically...

Huang Chengyan is also a hard-working person. He immediately greeted a few people and got busy. Regarding the invention and innovation of equipment, Huang's preference seems to be flowing in his blood vessels. Even Huang Yueying is eager to try it out. If Fei Qian hadn't been there, she would have run up to watch the fun...

At this time, a servant of the Huang family came to report to Fei Qian that a person from Yanzhou was visiting, and he had now arrived in Lushan...

Yanzhou? Shanyang County seems to belong to Yanzhou. Could it be that Master Liu Hong sent someone here?

Thinking of this, Fei Qian quickly explained the reason to Huang Chengyan and said goodbye.

Huang Chengyan understood and asked Fei Qian to return quickly. However, Huang Yueying was in a dilemma. She wanted to stay and watch her father make the weapon, but she also felt that she wanted to accompany Fei Qian...

Fei Qian understood, so he said to Huang Yueying: "How about you stay here for now? I can just go back alone and pick you up tomorrow?"

Huang Yueying hurriedly nodded like a chicken pecking at rice, and then felt that Fei Qian would be a little unhappy if she agreed to stay so quickly. After carefully looking at Fei Qian's expression, she felt relieved and ran to Huang Chengyan happily. Went to the edge.

Fei Qian said goodbye to Huang Chengyan and went back to Lushan first.

Huang Yueying stood next to her father Huang Chengyan, watching a group of craftsmen at work, and suddenly felt very happy. She secretly covered her mouth and bent her eyes.

When I was young, I would sit next to my father like this, watching these uncles and uncles building this and assembling that, and then the toys in front of me would be square, round, triangular, etc. various wooden blocks...

When I was young, I squatted next to my father like this, watching these uncles and uncles using saws and axes to gradually change a large piece of wood into a new shape, and then I also held the small saw specially made by my father and squeaked. He was sawing wood, and his little hands were bruised with blood blisters...

When I was young, I stood beside my father like this and watched these uncles and uncles assemble their first equipment according to their own ideas - a sweeping device equipped with four brooms - although it later proved that this equipment was not good at all. It is better to just sweep the floor with a broom...

But as I grew up, I gradually couldn't stand beside my father like this...

All I can do is climb on the wooden plow my father built in the backyard, lie on the wall with my little head exposed, and watch eagerly...

Huang Yueying thought of this and suddenly realized that her father had built a new wooden plow every once in a while for so many years and replaced the old one, but the place where the new wooden plow was placed had never changed. It was always in the same position. …

Also, I have obviously grown taller, but when I stepped on the wooden plow, I could only reach my head above the backyard fence. This has been the case for so many years...

Father must have known for a long time that I was lying on the wall there...

However, from now on, father will no longer have to build a new wooden plow...

Huang Yueying looked at her father beside her and saw his gray hair on both temples. She suddenly felt her nose was a little sour. It turned out that unknowingly, she had grown up and got married, but her father was old...

Huang Chengyan seemed to feel something. He turned his head and saw Huang Yueying standing next to him. His two big eyes were misty. He couldn't help but be a little surprised. He turned around and reached out to rub Huang Yueying's head and said, "Yueying, what's wrong?"

"Hmm...it's okay," Huang Yueying blinked, found a topic, and said, "Father...well, why did you take out the three volumes of weapons and armor to...show it to Ziyuan?"

Huang Chengyan smiled, but did not explain directly. Instead, he walked over and explained a few words to the busy craftsmen, and then came back and motioned for Huang Yueying to follow him back to the hall of the hermitage.

After the two of them sat down, Huang Chengyan stroked the three volumes of letters on the table and asked Huang Yueying: "Yueying, do you think these three volumes of letters are important?"

Needless to say? It must be important. Huang Yueying nodded.

Huang Chengyan laughed, shook his head, and said: "Yueying, it seems you don't fully understand yet..."

Huang Chengyan did not continue to explain this topic, but suddenly asked Huang Yueying: "Do you know why I am so anxious to marry you to Fei Qian Fei Ziyuan?"

"Because... Ziyuan learned from Pang Gong? Ziyuan also likes to make things? That... Ziyuan saved me?"

Huang Chengyan nodded and said, "There are some reasons for these, but you didn't mention the most important reason."

Huang Yueying blinked her eyes, her eyes gradually shifted from Huang Chengyan to the letters on the table, and said: "What father means, could it be..."

"Exactly." Huang Chengyan said, "There are many young talents who have studied with Pang Gong, but not many of them are interested in the art of making things. In addition, Ziyuan had a fate with you before... these are all part of it. factors, but the most important thing is not these, but..."

"...but inheritance!" Huang Chengyan restrained his smile and said seriously, "The Huang family has inherited the secret inheritance of Hu Feizi since the early Han Dynasty, and it has continued for more than three hundred years... Now it's time to If the inheritance is accidentally cut off in my hands, I will be ashamed of the ancestors of the Huang family!"

"...Huang's family is not happy. You are the only one under me. Every time I think about this as a father these years, it feels like a huge stone weighing on my heart. Fortunately, Fei Qian Fei Ziyuan appears. From all aspects, it is It is most appropriate, so my father asked Pang Gong to speak openly and settle on this marriage..."

"Father...why have you never mentioned these things to me..." Huang Yueying thought of the pressure her father had endured under his smiling face over the years, and she couldn't help but feel sorry for her father, and her big eyes gleamed... …